It is not a dangerous memory resident parasitic virus. It hooks INT 21h and writes itself to the beginning of DOS COM and EXE files that are executed. A block of virus code is also written to the end of files. While infecting the virus encrypts the body of host file.
The virus also hooks INT 9 (keyboard) and on Alt-Ctrl-Del displays the red color message:
+--------------------------+
| |
| ILSANT & Tjiong S |
| DESTROYER |
| |
| (c) Mad Computerz |
| |
+--------------------------+
